[article]
Titre : |
Electrocatalysis of sandwich-structured Pd/polypyrrole/Pd composites toward formic acid oxidation |
Type de document : |
texte imprimé |
Auteurs : |
Keqiang Ding, Auteur ; Haitao Jia, Auteur ; Suying Wei, Auteur |
Année de publication : |
2011 |
Article en page(s) : |
pp. 7077-7082 |
Note générale : |
Chimie industrielle |
Langues : |
Anglais (eng) |
Mots-clés : |
Oxidation Composite material Electrocatalysis |
Résumé : |
Palladium (Pd) nanoparticle catalysts were electrodeposited onto a graphite electrode by cyclic voltammetry (CV) technique from a 0.5 M HCl solution containing 0.2 M PdCl2, and then a film of polypyrrole (PPy) was immobilized onto the as-prepared Pd-coated graphite electrode, leading to a PPy/Pd-coated electrode. Pd particles were repeatedly electrodeposited on the PPy/Pd-coated electrode to generate a Pd/PPy/Pd sandwich structured composite coated electrode. This developed composite electrode showed a satisfactory electrocatalysis toward the formic acid oxidation (FAO). The catalysis mechanism of the sandwich structured Pd/PPy/Pd composite catalyst toward FAO was also discussed on the basis of the obtained cyclic voltammograms and FT-IR spectra. |
DEWEY : |
660 |
ISSN : |
0888-5885 |
En ligne : |
http://cat.inist.fr/?aModele=afficheN&cpsidt=24199927 |
in Industrial & engineering chemistry research > Vol. 50 N° 11 (Juin 2011) . - pp. 7077-7082
[article] Electrocatalysis of sandwich-structured Pd/polypyrrole/Pd composites toward formic acid oxidation [texte imprimé] / Keqiang Ding, Auteur ; Haitao Jia, Auteur ; Suying Wei, Auteur . - 2011 . - pp. 7077-7082. Chimie industrielle Langues : Anglais ( eng) in Industrial & engineering chemistry research > Vol. 50 N° 11 (Juin 2011) . - pp. 7077-7082
Mots-clés : |
Oxidation Composite material Electrocatalysis |
Résumé : |
Palladium (Pd) nanoparticle catalysts were electrodeposited onto a graphite electrode by cyclic voltammetry (CV) technique from a 0.5 M HCl solution containing 0.2 M PdCl2, and then a film of polypyrrole (PPy) was immobilized onto the as-prepared Pd-coated graphite electrode, leading to a PPy/Pd-coated electrode. Pd particles were repeatedly electrodeposited on the PPy/Pd-coated electrode to generate a Pd/PPy/Pd sandwich structured composite coated electrode. This developed composite electrode showed a satisfactory electrocatalysis toward the formic acid oxidation (FAO). The catalysis mechanism of the sandwich structured Pd/PPy/Pd composite catalyst toward FAO was also discussed on the basis of the obtained cyclic voltammograms and FT-IR spectra. |
DEWEY : |
660 |
ISSN : |
0888-5885 |
En ligne : |
http://cat.inist.fr/?aModele=afficheN&cpsidt=24199927 |
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